Studies in Heredity As Illustrated By the Trichomes of Species And Hybrids of Juglans, Oenothera, Papaver, And Solanum
The book Studies in Heredity As Illustrated By the Trichomes of Species And Hybrids of Juglans, Oenothera, Papaver, And Solanum was written by author William Austin Cannon Here you can read free online of Studies in Heredity As Illustrated By the Trichomes of Species And Hybrids of Juglans, Oenothera, Papaver, And Solanum book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Studies in Heredity As Illustrated By the Trichomes of Species And Hybrids of Juglans, Oenothera, Papaver, And Solanum a good or bad book?
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Later each octant is divided by walls which extend outwards from the newly-formed octant walls and a head of 16 cells is the result. The actual formation of walls subsequently was not observed. Usually the cell-division in the head proceeds in a regular manner, so that the product is symmetrical, but a single monstrous trichome was seen in which this had not been the case. The history of this trichome, naturally, could not be studied; it is shown at /, fig. 8. Measurements on the disk-shaped tr...ichomes show that they vary both in diameter and in depth in a regular manner, which is to be related to the relative age of the leaf where found. Following are given measurements, in /*, on the diameter and the depth of disk-shaped trichomes on young leaves: diameter, 105.0, 109.2, 105.0; depth, 8.4, 8.4, 12.6, 16.8, respec- tively. The trichomes are not so abundant on old leaves and, as the fol- lowing figures (/a) show, they are also of less diameter; the depth is not given: diameter, 58.8, 50.4, 46.2, 46.2, 58.8, 46.6, 42.0, 42.0, 50.4, 58.8, averaging 45.0.
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